Elevator for sucker-rods.



G. L. PARKER.

ELEVATOR FOR sauna nous.

APPLICATION FILED JULY 9, 1912.

Patented Sept. 2,1913.

2 SHEETS-11331 1.

INVENTOR WITNESSES c. 1;. PARKER.

ELEVATOR FOR SUGKER RODS.

. APPLICATION FILED JULY 9, 1912. 1,972,360.

2 SHEETSSHEET z.

INVENTORI.

ATTORNEIY' Patented Sept. 2, 1913.

tinrrnn srnrns PATENT our-Ion.

cnsnnrtcn umen PARKER, or Los ensures, CALIFORNIA. H

nnnveron son sncKnn-Rons.

- readily placed, and .upon which sucker rod the device may close in a manner to hold the" rod firmly in place against possibility of dis; placement. I The invention comprises what may be termed e solid beck yoke in which is lodged a. sucker rod seat, and which carries a gate whereby the sucker rod may be locked to its seat by theclosing of the gate in a manner preventing displacement and resisting the heavy strains to which the device is put. The invention will be best understood from s. consideration of the following detailed description taken in connection with the accompanying drawings forming apart of this specification, with the further understanding that while thedrawings illustrate a practical form of the invention itis susceptible of other practical embodiments,v wherefore the invention is not confined to any strict conformity with the showing of the drawings, but may be changed and moditied so long as the changes do not mark any materiel departure from the salient features of the invention.

in the drewingsz-Figure 1 is s plan view of the sucker rod elevator, the latter being shown in-cross section through the wrenching portion of the sucker rod. Fig. 2 is at side el eyation of the structure of Fig. 1 with one of the beilreceiving trunnions shown in section and the corresponding p0rtion of thbail omitted. Fig. 3 is a section on the line 3-3 of Fig. 1 with the sucker, u n in elevation. Fig.4 is a. section ine -4 of 1. Fig. 5 is a. longitudinal section through a gate used in connection a th the prsent device. Fig. dis an elevn; 11 of the gate tightening lever. Fi I plan view of a modified form of Sue as: red t.

Referring to the drawings, there is shown at sucker rod 1 l i :1 terminal portion 2 of rectangular cross Specification of Letters Patent.

ion with flanges 3,

4 at the opposite ends, and a. continuation 5 terminating in screw threads designed to enter a suitable coupling for connecting one sucker rod section to another. The sucker rod described may be taken as an example of any suitable sucker rod and notes limitihg the invention to the particular form olfsucker rod illustrated. v

The sucker rods of deep well pumps are made up of numerous comparatively short sections connected together at the ends by, screw'couplings, and these rods are inserted in the well length by length, or withdrawn from the well in like manner.

'The elevator comprises a body portion 6 which may be in the form of a generally rectangular yoke having side walls 7,8, re-

Patented Sept. 2, 1913. Application filed July 9, 1912. Serial No. 703,456.

spectively, end a. connecting well 9 which may be appropriately strengthened by webs 10, 11. Opposite the wall 9 the yoke is open, while on the inner fecesoif the walls 7, 8 and 9 therefis formed an inwardly directed flange or ledge 12, the ledge terminating adjacent the free ends of the side walls 7 and 8.. in uprising enlargements 13, 14,'re'spectively, which are l1Ild8ICl1i,'3S shown at 15, toward the rear well and adapted to the ledge 12 and the under cut portions 15is o. substantially threesided approximately rectangular sucker rod seat 16 having the free ends of the side portions beveled, as indicated at 17 to engage the under cut portions 15,, while extending through the rear wall 9 above the ledge 12 thereof are set screws 18 adapted to engage the corresponding portion of the seat frame 16 to bind the beveled portions 17 to the under cut ports 15. The

seat 16 is so proportioned to the ledge 12 that on loosening the screws 18 the seat may be readily removed and another substituted, such a substitute seat 16 being indicated in Fig; 7.

In Fig. 1 and associated figures the seat 16 has its interior shaped to receive the rectangular portion 2 of the sucker rod terminal, while in Fig 7 the seat 16 has interior teeth 19 formed similarto the teeth of a. pipe wrench or ipe engaging jaw, so that v .165 Theparts of the I of a shape to receive the tooth 25 under cir cumstances to be descr bed. The passage 29 oi the'gate 27 formed with the an car 20 at the The end of the side 7 boss 13 is continued intoupper portion and into another car 21. near .4

mgs de of the elevator for the sucker rod s wholly free and open.

the lower portion, the two cars. ing spaced one from the other.

provided with the boss 1% is elongated, as

indicated at 22, and on the outer faceformed with a shallow notch 23. this structurebcing on the upper portion of the side member 8, while the lower portion is formed with a prolongation 24: spaced from the prolongation 22,. on the face toward the said last named prolongation the part 2435 thickened, as indicated at 25, to constitute a rather blunt tooth.

Traversing the ears 20 and 21 is a pintle 26 in the form of a bolt, and carried by this pintle is one end of a gate 27 of elongated contour and defining an obtuse angle longitudinally. This gate isprovided'near one end with a passage 28 for the pintle 26, and near the other end while adjacent the intermediate angle there is provided a threaded socket 30 and in the face of the gate which in practice constitutes I its lower face there is anotch or recess 31 is designed to receive apivo't 32 which may be in the form of a bolt, which pivot traverses ears 33, 34 so formed on one end of a lever 35 as to straddle the end of the gate provided with a passage 29. The car 34. is formed with an angle extension 36, so situated as to engage the notch 23 under circumstances to be described, and it is evident-that both cars 33 and as may have angle extensions 36 and the prolongations 23 and 24 may both be formed to receive these an le extensions. The threaded socket 30 is designed to re ceive a set screw 37 securing to'the gate a plate 38 having at one end a tooth 39 extending beyond one face of the plate at a slight angle thereto, while a lug 40 on the other face of the plate'is so disposed as to engage the corresponding edge of the gate when the plate 38 is secured to the gate by the screw 37.

On the outer faces of the'sidcs 7 and 8 of the yoke 6 are pins or trunnions 41 designed to traverse eyes 42 formed on the respective ends of a bail or link 43 to which the elevator rope or cable is secured, it being customary to provide the wells with a derrick and suitable pulleys and other means, where by the elevator rope may be manipulated as ma be found desirable. v

When the elevator is in position to receive a sucker red, the lever 35 is,,m oved in a direction to carry the end 360m of the notch 23 and then the gate is swung on the pintle or pivot 26 until the open sides of the yoke and seat 16 or 16 lodged therein are entirely free. The sticker ro'dis now introducedand That end of the side 8.

tion to the 0 on side of with another passage 29,-

for round portions of rods tooth 25 engaging-1n in the case of the yoke 16, the flange V is so placed as to rest on top of the seat. This may be readily accomplished since the enter- Now the gate is swung around into place in traversing relathe yoke, and the gate is slight y elevated by riding up the tooth 25 which has an inclined outer face to facilitate such action, and ultimatcl tooth 25 will enter the recess 31, while tooth 39 engages under the flange 4 and as the latter moves on to the seat 16 the ate is forced downwardly until the tooth 5 has so entered the recess 31 that the gate cannot again move outwardly until the pressure is relieved. In order to secure the free end of the gate in locked relation to the yoke 6 the lever 35' is manipulated, so that its shorter end'or ends 36 enter the recess or recesses 23, thereb locking the' lever in position against lia ility of accidental displacement, but at the same time offering no material resistance to the designed movement of the lever to unlocking position.

Where it is desirable to utilize the elevator instead of square or rectangular portions of rods, it is av simle matter to loosen the set screws 18 and substitute the seat 16 or "other a propriate seat for the seat .16, when the evice will operate. as before. In this constructiomthe lever 35 is not depended upon to hold the gatein place, for it is accomplished by the the notch or recess 31." of the gate, which gate is held in such position by the weight oft-he sucker rod inenthe W 5 the 7\ gagement with the tooth 39. The lever 35, however, acts as a connecting member in conjunction with the gate between the free ends of the side members 7 and 8 of the open ended yoke frame,

is in operation the frame becomes as it were a closed frame with no portions liable to spring apart and either be broken or otherwise permit the sucker rod to escape. The solid back yoke or main frame of the elevator rovides a strongand comparatively unyiel ing member receiving the direct' weight of the sucker rod and provides direct connection for the lifting bail or link.

Wh at is claimed is 1-- so that when the device 1'. A sucker rod elevator c'om rising a;

frame or yoke open atone side an of a size to wholly contain a sucker rod moved into the yoke through the open'side, the members of the yoke being in the other, a gate for the open side of the yoke hinged thereto rand movable to close the open side, the yoke'arndgate having (:0- actin; means for lockingt e gate inthe close position, and saidgate bein of less height than the yoke at the open si e of the latter, and means carried by the gate in-up standing relation thereto for engaging a fixed relation one to sucker rod lodged in the yoke to hold the gate in the locked position by the weight of the sucker rod.

2. In a sucker rod e1evator','a frame or yoke open at one side toan extent to receive a sucker rod through said 0 en side, a gate,

pivoted at one end to the yo eland movable into transverse relation to the open side of the yoke, a tightening lever carried by the end of the gate remotefrom the pivot end, and means on the gate movable. into engaging relation to a sucker rod lodged in the yoke to be engaged by said sucker rod under the action of the weight of the sucker rod, the gate and yoke beingprovided with coacting means for locking the gate to the yoke by the action of the weight of the sucker rod and the tightening lever andyoke being provided with coacting means for re sisting spreading action of'the open end of the yoke.

3. In an. elevator for sucker rods, a yoke constituting the frame of the elevator and of a size to wholly receiv a sucker rod, said sides matching.

4. In an elevator for sucker rods, an open 7 sided yoke constituting the 'frame of the elevator, and a removable seat for the sucker rodladapted to the yoke, said seat having one side open to correspond to the open side of the yoke, the yoke being provided with a supporting ledge for the seat and with under-cut portions, and the seat being provided with beveled ends adapted to the un der-cut portions, the yoke being also provided with means for holding the seat in removable locked relation to the yoke.

In an elevator forsucker rods, anunbroken yoke having one side open to an extent to receive a sucker rod therethrough, a gate movable into and out of traversing re lation tothe open side of the'yoke, and

means for causing the locking of the gate in the closed position by the weight of the sucker rod. said means comprising a tooth, formed on the yoke in position to-enter are; cess formed in the gate, and said gate'being provided with a tooth-in positionto be engaged by the sucker red to hold the first named tooth in the said recess. 6. In an elevator for sucker rods, an unbroken yoke having one side open to an extent to receive a sucker rod therethrough, a

gate movable into and out of traversing relati on to the open side of the yoke, and

means for causing the locking of the gate inthe closedposition by the weight of the sucker rod, said'means comprising a tooth formed on the yoke in position to enter a recess formed in the gate, and said gate being provided with a tooth-in position to be engaged by the sucker rod to hold the first named tooth in the said recess, and said gate and yoke being provided with coact-.

ing means resistant to spreading action of the free ends of the open sided portion of the yoke.

.7. In an elevator for sucker rods, a-yoke.

adapted to receive a sucker rod and having one side open to an extentto permit the passage of the sucker rod into the yoke, a removable seat for the sucker rod adapted to be carri ed by the yoke, a gate pivotallysupported at one end to one side of the open sided portion of the yoke and havin an extent of movement longitudinal o pivot, said gate being. also provided w th a recess on one face and the yoke being pro vided with a tooth on theside of the open end of the yoke remote from that to which the gate is pivoted, a lever carried by the free end of the gate in position to engage and lockwith the corresponding end of the yokewhen the gate is closed, and a tooth carried by an intermdiate portion of the gate in position to be en aged by a sucker rod when in the yoke to orce the gate into locking relation to the tooth of the yoke.

5 In testimony that I claim the foregoing as my own, I have hereto afiixed my signaturein thepresence of two witnesses,

CLARENCE LYMAN PARKER.

-Witnesses5 I I FRANK D. Evans, ROBERT I. EUSTIS. 

